Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (12,380)	$ (17,725)	$ 5,101
Other comprehensive (loss) income:
Foreign currency translation adjustments	(1,097)	(489)	438
Unrealized (losses)/gains from marketable securities, net of tax	(11)	4	(9)
Total other comprehensive (loss) income	(1,108)	(485)	429
Comprehensive (loss) income	$ (13,488)	$ (18,210)	$ 5,530